Question about Compaq Presario 5000 PC Desktop

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My power on switch connector colors on the board are mixed up

I mistakenly pulled up the switch connector of the board whilst inserting in a card . Duetothis the colors in the connectors are mixed up and i need the color code in order to have my switch back on again.

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You can not hurt the system by trying different combinations. It just won't start up.
- usually there are three pins and only two are connected. This means that there are only two ways to connect it. It may be that both ways work. Try one and if it doesn't work then flip it 180 degrees and try the other way. Push buttons and power switches don't care about color. They are non-intelligent, on-off devices.

Posted on Jan 08, 2009


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1. WHAT COLOR ARE THE ELECTRICAL POWER CONNECTORS ON AN ASUS MOTHER BOARD? White and/or black? 2. Can a small (short) pci card (USB 3) be inserted in a larger (black or white) slot? 3. My board has...

1. this is the manual for the board:
it should be able to answer your questions.

May 21, 2011 | ASUS M2N-MX Motherboard

1 Answer


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Power-on LED illuminates when power button is pressed, fans spin, and boot tone chimes, but there is no video

1. Reseat video card. (Make sure video card is fully inserted in connector and end of card is secured by the connector latch.)

2. Reset PRAM (restart computer while holding down Command-Option-P-R keys until second boot tone chimes)

3. Replace video card

4. Reset logic board. Refer to "Resetting the PMU on the Logic Board" in this chapter.

5. Replace logic board

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Resetting the PMU on the Logic Board

The PMU (Power Management Unit) is a microcontroller chip that controls all power functions for this computer. The PMU is a computer within a computer. Its function is to:

tell the computer to turn on, turn off, sleep, wake, idle, etc.

manage system resets from various commands.

maintain parameter RAM (PRAM).

manage the real-time clock.

Important: Be very careful when handling the logic board. The PMU is very sensitive and touching the circuitry on the logic board can cause the PMU to crash. If the PMU crashes and is not reset, the battery life goes from about five years to about two days.

1. Disconnect the power cord and check the battery in the battery holder. The battery should read 3.3 to 3.7 volts. If the battery is bad, replace it, wait ten seconds, and then proceed to step 2. If the battery is good, go directly to step 2.

2. Press the PMU reset button once and then proceed to step 3. Do not press the PMU reset button a second time because it could crash the PMU chip.

3. Wait ten seconds before connecting the power cord and powering on the computer. If the computer does not power on, there is something else wrong with it; refer to the "Startup Failures" section of "Symptom Charts" in this chapter.

Note: The above procedure resets the computer's PRAM. After resetting the PMU, be sure to reset the time, date, and other system parameter settings.

Dec 11, 2010 | Apple Power Mac G5 Desktop

2 Answers

How do I remove the keyboard on a Samsung R610 laptop. I have been able to remove the keyboard, but can't seem to unclip the cable that connects the keyboard to the motherboard. Is there some special...

The keyboard connector come in two types.
A plastic connector and usually has a plastic tab that you pull to lift the connector off, DO NOT PULL on the ribbon cable.
The other type is, a ribbon cable that is inserted into a plastic socket on the motherboard. To release the ribbon cable, lift up the plastic catch on both ends of the to release the ribbon cable. When you want to insert the ribbon cable, make sure the catch is in the up position before you insert the ribbon cable, then insert the ribbon cable and the push the ends of the plastic catch down to lock in the ribbon cable.

Aug 04, 2009 | Samsung R610-64G Laptop

1 Answer

Motherboard won't go to boot sequence

Check the power supply if its giving the correct voltage on the mother board.

I know you're going to say it have power, but sometime it happens, It happend to me once, there was power and everything check everything and its working fine but when i put it back together nothing's seem to be working. I swap the power supply and bingo.

Mar 31, 2009 | ASUS P5S800-VM Motherboard

2 Answers

Front panel connections

Hi sjcrofts,
The most common problem for most people is knowing what wire color is positive & which wire color is negative. The colors blue, red, green, light blue, light red & light green are normally positive. The color white & black are negative. Your board uses only 2-pin connectors. The 3-pin power connector can be turned into a 2-pin connector to work with the M848ALU pins.
(Page 13, PANEL1). How to? Take the three pin connector, on the back side of the connector you'll see a small tab that holds the wire into the connector. Use a needle & pull tab up while pulling the wire out at the same time. The wire should slide out. Insert the wire back into the connector next to the other wire. You do not need to hook up the SUS led which stands for suspend.


Pin 1 is positive & the manual shows this by adding the _P = positive.
Pin 3 which is to the right of pin 1, is negative for the hard drive led. Pins 9 & 10 are not used.

Good luck sjcrofts!

Nov 30, 2008 | PC Chips M848ALU Motherboard

1 Answer

Power won't turn off and computer will not boot. I've removed the battery and cleared the CMOS with the jumper. lt happened after a couple of power failures at home however pwer supply has a surge...


The Green LED on the power board is a warning light to techs to let us know the board is energized and to wait for it to go fully off before changing RAM or anything else on the motherboard. So, ignore that light.

What surprises me is that there are no error beep codes.

Try this out, pull the plug and wait for the light on the motherboard to go off. check that all connectors to the motherboard are tight and all plugs from the power supply are tight, remove and re-seat the graphics display adapter.

At the bottom right of your motherboard is a set of wire connections that are of mixed colors, green and white, red and while, etc. See if the green and white connector and all of them are seated correctly. It could be that the wires from the power on button are not seated properly or have come loose. The power on connector is usually three pins wide but has wires at either side of the connector. Also, some PC have a Case Open Switch, it is usually noticeable by examining the case opening. If you see one, put the case cover back on and try again.

Frankly, it appears your machine is stuck in sleep mode where even removing the power plug does not fix the problem.

The confusion on this problem is that there are no beep codes, and the board is energized which won't happen if the Power Good signal from the Power Supply is absent and thus preventing a bootup. Since, it is energizing the problem may be any of the above I suggested you look at and possibly your motherboard's CMOS chip. This chip instructs the board on how to boot up to the point where the BIOS chip can take over.

Hopefully, you are under warranty and can get service from the maker if nothing can be resolved by our help here at fix ya. Or, if you don't consider yourself a computer tech I'd further suggest you have one get their hands on your machine where diagnostic can be more thorough than we can give you via text messages.

Still, try the above suggestions and let us know.


May 24, 2008 | Computers & Internet

1 Answer

Vga display problem

There is one pin/wire on the VGA connector that translates to the color red on your screen. If you aren't seeing any red, I would suspect that there is damage to the integrated VGA connector on the motherboard, or a component failure in the circuit.

These are great desktop boards.

The Video bus on these boards are shared between the integrated (onboard) video card and port and the AGP slot. This means that you can only use one or the other. When you install an AGP card in the slot it overrides the integrated video including your problem.

If you are good with electronics I'd take a look at the board under the scope and look for damage.

I would rist check with intel on the warranty. You may be surprised. I've had several of these replaced via RMA through intel. They are a bit older but still by desktop board of choice.

May 21, 2008 | Intel D865GBF Motherboard

2 Answers

Power up

pull everthing off board but power supply ram cpu and heatsink. then try to power unit.

May 08, 2008 | E-Machines eMachines Desktop PC

4 Answers

Speaker output

Yes, there are relay type switches associated with those outputs. Your RX-V1 is not dying.
Just plug a pin plug in and out of the dead channel to bump the switch. You will hear the speaker
come on. If it doesn't come on,do the plug jack in an out of the pre out again. It will come on.
You can use the test tone to check all channels and rebalance volume levels. You are making the
pre out connect to its power amp. It seems the problem got better when activating those switches. Most likely a cleaning issue. You can also jump the mains and center, and there is also
a modification to jump all channels. I bought my RX-V1 very cheap because of this and love it.
Of course outboard power amp would solve all, but getting this reciever to connect to it's own
power amp has been thrilling as far as bang for the buck. I do use the front effects also, and like
them. It may seem like a pain, but it is worth it to get those channels going.

Jan 01, 2007 | Yamaha RX-V1 Receiver

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